Inking-roll truck for printing-presses.



No; 662,339. Patented NOV. 27, I900.

J. H. SCHUSSLER. INKING ROLL TRUCK FOR PRINTING PRESSES.

no new.)

INVENTOR. Jo/m H. sebum/er? ATENT trip.

JOHN H. SOHUSSLER, OF DENVER, COLORADO, ASSIGNOR OF ONE-HALF TO WILLIAMM. CALDWELL, OF SAME PLACE.

lNlKlG -ROLL TRUCK FOR PRlNTlNG PRESSESf SPECIFICATION forming part ofLetters Patent No. 662,880, dated November 27, 1900.

Application filed April 12, 1900.

T0 at whom it may concern.-

Be it known that 1, JOHN H. SoHUssLEn, a citizen of the United States ofAmerica, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and usefullmprovements inInking-Roll Trucks for Printing-Presses; and I do declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and tothe figures of reference marked thereon, which form, a part of thisspecification.

My invention relates to improvements in inking-roll trucks forprinting-presses.

My improved truck is of the class having two treads of different heightsso arranged that the high tread engages the truck during the movement ofa supplemental inking-roll in one direction, whereby the roll is raisedabove the surface of the type, While the low tread engages the trackwhile the roll is moving in the opposite direction, bringing thesupplemental or auxiliary roll in contact with the type. r

The object of an invention of this character is the even inking of thetype. Without the supplemental or auxiliary roll the inking of thetype-surface is uneven by reason of the fact that during the firstrotation of the rolls after leaving the ink-disk the greater portion ofthe ink is removed and during subsequent rotations less ink is depositedon the front or printing surface of the type. The supplemental rollmounted on my improved truck is kept raised from the type during thedownward movement while the other rolls are engaging theprinting-surface, but is brought in contact with the face of the typeduring the upward movement, whereby there is a substantially evendistribution of ink thereon.

The invention will now be described in detail, reference being made tothe accompanying drawings, in which is illustrated an embodimentthereof.

In the drawings, Figure 1 is a fragmentary side elevation of aprinting-press equipped with my improvement. Fig. 2 is a fragmentaryview of the apparatus. Fig. 3 is a fragmentary front view in detail,showing the Serial No. 12,586.- (No model.)

Fig. 4 is a vertical section Fig. 7 is a sectional detail view of thethe beveled portion of the track, whereby the hightread portion of thetruck is made to run oif the track. This view is shown on agreatly-enlarged scale.

The same reference characters designate the same parts in all the views.

' Let the numeral 5 designate the frame; 6, the printing or typesurface; '7, the ink-disk; 8, the rollers equipped with ordinary trucks,andQthearms for-actuatingtheinking-rollers.

These rollers are attached to the arms by rods 12 and held in contactwith the bed or printing-surface and the ink-disk by springs 13.

The supplemental roller 14 is provided with one of myimproved trucks ateach extremity.

As these trucks are alike a description of one only will be necessary.This truck consists of two important partsnamely, the lowtread part 16and a high-tread part 17. Formed integral with the low-tread part is asleeve 16, which engages the roller-shaft 15.

The part 16 and its sleeve are attached to the roller-shaft by asuitable key 18, whereby the roller and truck parts are made to rotatetogether. Mounted on the sleeve 16 is the high-tread part 17 of thetruck, which is connected with the sleeve by a key 19. By thisarrangement the two truck parts are made to rotate in unison, but thepart 17 is allowed an independent movement in a direction parallel withthe shaft of the roll. are further connected by two screws 20, passingthrough plain openings formed in the part 17 and entering threadedopenings in the part 16. These screws are diametrically located. Theopenings in the part 17 are made larger than the screw-shanks, as shownat 21, the greater part of their length to make room The two parts 5foreoil-springs 22,which surround the screws. One extremity of eachspring bears against the screw-head, and the other extremity engages ashoulder 23 at the bottom of the enlarged opening 21. The tendency ofthese springs is to hold the two tread parts 16 and 17 in contact witheach other, as shown in Fig. 7. As shown in the drawings, the outeredges of the track 24 are outwardly beveled at their lower extremities,as shown at 25, to allow the spring-actuated rods acting on the rollerto pull the high-tread parts of the truck from the track, whereby as theroller moves upwardly the high-tread truck parts travel outside of thetrack, allowing the roller to engage the printing-s11 rface. Tofacilitate this action, the inner peripheral corner of the part 17 isslightly rounded or beveled, as shown at 17.

As the ink-rollers leave the disk 7 in their downward movement thetrucks of the ordinary rollers 8 engage the tracks 24, bringing therollers in contact with the printingface 6 of the type. At the same timethe high-- tread part 17 of each auxiliary roller-truck engages thetrack, whereby the roller 14: is raised from the printing-surface duringthe downward movement of the rollers. After the inking-rollers leave theprinting-surface and are about to begin the return movement the part 17of each truck engages the grooved part 25 of the track and slips off,this action being facilitated by the rounded corner of the truck partand the action of the springs 13. As soon as this occurs the low-treadpart 16 engages the top of the track, while the part 17 engages the sidethereof, (see Figs. 5 and 6,) and as the rollers pass upwardly theauxiliary roller 14 is brought in contact with the printing-face of thetype for the first time afterleavingtheink-disk. Henceasufficientquantity of ink is applied to the lower portion of the type by theauxiliary roller to compensate for the limited quantity applied by therollers 8, and the printing-surface of the type is properly and evenlyinked for all practical purposes.

During the outward movement of the part 17 of the truck as it slidesfrom the track the springs 22 are compressed into the openings 21, theheads of the screws being then flush with the outer surface of the truckpart. Hence as soon as the auxiliary roller leaves the upper extremityof the track and passes to theink-disk the recoil of the springs returnsthe part 17 to its normal position ready for the downward movement, whenits action will be a repetition of that just described.

The key 19, which causes the two truck parts to rotate in unison,prevents undue pressure on the springs 22, which might interfere withtheir proper action if the key were not used and in case the screws wererelied upon exclusively to connect the two truck parts;

Having thus described my invention, what I claim is 1. The combinationwith an auxiliaryinking-roller for printing-presses, and spring-actuatedrods connected with said roller and having a tendency to hold the latteragainst the printing-surface, of a truck composed of two parts, namely,a low-tread partand a high-tread part, a connection between the twotruck parts whereby they are normally held in contact but allowed toseparate, and a track having a truck outwardly beveled at its lowerportion in the path of the high-tread part of the truck whereby as thehigh-tread truck part reaches this bevel in its downward travel, thespring-actuated rods, acting on the roller, pull the high-tread part oneach end of the roller, from the track whereby as theroller movesupwardly each high-tread truck part travels outside the track allowingthe roller to engage the printingsnrface.

2. The combination with an auxiliary inking-roller for printing-presses,and spring-actuated rods connected with said roller and having atendency to hold the latter against the printing-surface, of a truckmounted on each extremity of the roller, each truck being composed oftwo parts, namely, a low-tread and a high-tread part, the latter havinga rounded or beveled inner corner, a connection between the two parts ofeach truck whereby they are normally held in contact but allowed toseparate, and a track for the truck outwardly beveled at its lowerportion in the path of the high-tread part of the truck whereby as thehigh-tread part reaches this bevel in its downward movement, thespringactuated rods acting on the roller pull the high-tread part fromthe truck bringing the roller in contact with the printing-surface readyfor its upward movement.

In testimony whereof I aftix my signature in presence of two witnesses.

JOHN H. SOHUSSLER.

Witnesses: r

A. J. OBRIEN, GRACE .MYTINGER.

